Four-Arm Sinuous Antenna With Low Input Impedance for Wide Gain Bandwidth
An improved method of reducing the input impedance of a four-arm sinuous antenna is demonstrated for a wide gain bandwidth. The proposed antenna has a dual-linear polarized response for electronic support measures (ESM) systems and is designed with a planar substrate. The structure for reducing the...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
IEEE
2022-01-01
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| Series: | IEEE Access |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/9745621/ |
| _version_ | 1818393838016790528 |
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| author | Donghyun Kim Chan Yeong Park Youngwan Kim Hyun Kim Young Joong Yoon |
| author_facet | Donghyun Kim Chan Yeong Park Youngwan Kim Hyun Kim Young Joong Yoon |
| author_sort | Donghyun Kim |
| collection | DOAJ |
| description | An improved method of reducing the input impedance of a four-arm sinuous antenna is demonstrated for a wide gain bandwidth. The proposed antenna has a dual-linear polarized response for electronic support measures (ESM) systems and is designed with a planar substrate. The structure for reducing the input impedance is developed based on the transmission and coupled line theory and is shown to be in excellent agreement with theoretical predictions. The proposed antenna achieves an impedance bandwidth in the range of 0.45–6 GHz with a reference impedance of <inline-formula> <tex-math notation="LaTeX">$100 ~\Omega $ </tex-math></inline-formula>. Simulations for comparison according to the difference in input impedance of designed antennas with feeding structures are also presented. Finally, the performance of the fabricated antenna with wideband balun is verified by measuring co- and cross-polarization radiation patterns. As a result, the proposed antenna achieves a wide gain bandwidth (>2.5 dBi) and a cross-polarization isolation (>−13 dB) of more than 12:1 in the frequency range over 0.6 GHz, which can be used in ESM systems. |
| first_indexed | 2024-12-14T05:51:40Z |
| format | Article |
| id | doaj.art-1d18ed2c87f24ea6bfa21628796c46d3 |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-12-14T05:51:40Z |
| publishDate | 2022-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-1d18ed2c87f24ea6bfa21628796c46d32022-12-21T23:14:42ZengIEEEIEEE Access2169-35362022-01-0110352653527210.1109/ACCESS.2022.31638219745621Four-Arm Sinuous Antenna With Low Input Impedance for Wide Gain BandwidthDonghyun Kim0https://orcid.org/0000-0002-9085-5509Chan Yeong Park1Youngwan Kim2Hyun Kim3Young Joong Yoon4https://orcid.org/0000-0002-9585-9867Electrical and Electronic Engineering Department, Yonsei University, Seoul, Republic of KoreaElectrical and Electronic Engineering Department, Yonsei University, Seoul, Republic of KoreaRadar Research and Development Laboratory, LIG Nex1 Company Ltd., Yongin-si, Republic of KoreaElectrical and Electronic Engineering Department, Yonsei University, Seoul, Republic of KoreaElectrical and Electronic Engineering Department, Yonsei University, Seoul, Republic of KoreaAn improved method of reducing the input impedance of a four-arm sinuous antenna is demonstrated for a wide gain bandwidth. The proposed antenna has a dual-linear polarized response for electronic support measures (ESM) systems and is designed with a planar substrate. The structure for reducing the input impedance is developed based on the transmission and coupled line theory and is shown to be in excellent agreement with theoretical predictions. The proposed antenna achieves an impedance bandwidth in the range of 0.45–6 GHz with a reference impedance of <inline-formula> <tex-math notation="LaTeX">$100 ~\Omega $ </tex-math></inline-formula>. Simulations for comparison according to the difference in input impedance of designed antennas with feeding structures are also presented. Finally, the performance of the fabricated antenna with wideband balun is verified by measuring co- and cross-polarization radiation patterns. As a result, the proposed antenna achieves a wide gain bandwidth (>2.5 dBi) and a cross-polarization isolation (>−13 dB) of more than 12:1 in the frequency range over 0.6 GHz, which can be used in ESM systems.https://ieeexplore.ieee.org/document/9745621/Four-arm sinuous antennalow input impedanceelectronic support measureswide gain bandwidth |
| spellingShingle | Donghyun Kim Chan Yeong Park Youngwan Kim Hyun Kim Young Joong Yoon Four-Arm Sinuous Antenna With Low Input Impedance for Wide Gain Bandwidth IEEE Access Four-arm sinuous antenna low input impedance electronic support measures wide gain bandwidth |
| title | Four-Arm Sinuous Antenna With Low Input Impedance for Wide Gain Bandwidth |
| title_full | Four-Arm Sinuous Antenna With Low Input Impedance for Wide Gain Bandwidth |
| title_fullStr | Four-Arm Sinuous Antenna With Low Input Impedance for Wide Gain Bandwidth |
| title_full_unstemmed | Four-Arm Sinuous Antenna With Low Input Impedance for Wide Gain Bandwidth |
| title_short | Four-Arm Sinuous Antenna With Low Input Impedance for Wide Gain Bandwidth |
| title_sort | four arm sinuous antenna with low input impedance for wide gain bandwidth |
| topic | Four-arm sinuous antenna low input impedance electronic support measures wide gain bandwidth |
| url | https://ieeexplore.ieee.org/document/9745621/ |
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